MALLINNUSJÄRJESTELY JA MENETELMÄT JA JÄRJESTELMÄ KOLMIULOTTEISEN PINNAN TOPOGRAFIAN MALLINTAMISEKSI

摘要

A modeling arrangement is disclosed for modeling the topography of a three dimensional surface. The arrangement includes a light source arranged to produce substantially monochromatic and coherent electromagnetic radiation; a camera arranged to photograph the surface to be modeled at wavelengths emitted by the light source as well as wavelengths detected by the human eye; and a grating provided in connection with the first light source. The light source and the grating provided in connection with the light source are arranged jointly to produce a diffraction pattern of a known geometry on the surface to be modeled.